Welding cylinder dolly



FIG. 1 is a side perspective view of a welding cylinder dolly showing my new design, the broken lines are for illustrative purposes only and form nor part of the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a welding cylinder dolly, as shown and described. 